@techreport{Vaupel2002,
author = {Vaupel, J. and Canudas-Romo, V. },
title= {Decomposing change in life expectancy: a bouquet of formulas in honour of Nathan Keyfitz’s 90th birthday},
year = {2002},
URL = {http://www.demogr.mpg.de/papers/working/wp-2002-042.pdf},
publisher = {Max Planck Institute for Demographic research},
address = {Rostock},
number = {MPIDR Working Paper; WP-2002-042},
}